Francaviglia, R. V. (2008). Over the range: A history of the Promontory Summit route of the Pacific railroad. Utah State University Press.
Chicago-referens (17:e uppl.)Francaviglia, Richard V. Over the Range: A History of the Promontory Summit Route of the Pacific Railroad. Logan: Utah State University Press, 2008.
MLA-referens (9:e uppl.)Francaviglia, Richard V. Over the Range: A History of the Promontory Summit Route of the Pacific Railroad. Utah State University Press, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.